Raid controller not detecting replacement drive

Hey Guys,

I am working on a IBM System x3250 M3 server and I have been trying to replace a degraded drive on a Raid 1 array.  From what I have read and been told the array should synchronize automatically when the new drive is placed in the same slot.  Unfortunately this did not happen.  I entered the raid utility and noticed that the drive does not seem to be detected.  I then switched the new drive from slot 0 to slot 1 and the drive is detected and ready.  My question is this: could this be a controller failure or something I am missing? I have been banging my head over this. The drives are the same size and type.  The controller is LSI 1064e SAS 3000 series.  The degraded drive was in slot 0.

Any ideas/help would be greatly appreciated.

Thanks
ChadHsrnAsked:
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WayneATaylorCommented:
I would say that the slot is maybe faulty.  Maybe dodgy contacts or something similar.

If it works OK in one slot but not another then does point to the slot.

Sometimes I have seen it with these servers where I have to force a drive online, but most times they automatically go online and sync themselves when they detect a new drive.

Wayne
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Nick RhodeIT DirectorCommented:
Safe assumption that leads to a faulty slot.  Does the server have any health monitoring tools through windows (like a dell OMSA) so you can see if there is any issues with the controller?
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ChadHsrnAuthor Commented:
Thanks for the responses.  The O/S is Windows Server 2008 R2 Enterprise and doesn't have any third party utility software that I know of.  Any good utilities for checking the controller? It is a LSI 1064e SAS.  Also, I would force a drive online through the raid utility correct?
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WayneATaylorCommented:
Yes you should be able to do that within the BIOS Raid utility at boot time, or you should find that there is a windows application for that controller that allow access from within Windows.

Management software can be found here:
http://www.lsi.com/products/io-controllers/pages/lsi-sas-1064e.aspx#tab/tab3

Wayne
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Steven HarrisPresidentCommented:
Just an extra FYI - It could also be a faulty Mid- or Back-board.  I just got done with a similar scenario where 4 of 5 bays were being read, the third bay (#2) was AWOL.
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Thomas RushCommented:
One thing most people don't know is that the drive backplanes on most servers
are designed for a rather small number of plug/unplug cycles -- perhaps in the
twenties.  People who try to mirror server drives and pull one out for a "backup"
frequently will run into this issue of the slot no longer working.

I'm not saying this caused your problem, but it is a potential problem for many.
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ChadHsrnAuthor Commented:
Thanks for all the help.  It was the backplane.  I replaced the backplane and the new drive was detected. Turned on hot spare and sync started.
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Steven HarrisPresidentCommented:
Glad you got it solved!
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ChadHsrnAuthor Commented:
I physically solved the problem with the advice of the comments.  This was how I solved the problem.
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